Spring Boot 3.2.0 not loading application context in JUnit code

Question

I have this JUnit code and it works without problems in Spring Boot 3.1. But when I upgrade to Spring Boot 3.2.0, it fails, and it says it fails to load application context. Can someone help me why this is happening?

Below is the code:

@ExtendWith(SpringExtension.class)
@DataJpaTest
@Import(TestCreateService.class)
public class CreateServiceTest{
  @Autowired private TestCreateService testCreateService;
  @Autowired private TestRepository testRepository;

   ...

  @Test
  public void bulkGetOrCreateTest() throws InterruptedException {
       ...
      assertThat(executorService.awaitTermination(60, TimeUnit.SECONDS)).isTrue();
      assertThat(testRepository.count()).isEqualTo(1);
    }
  }

}

Error:

[ERROR] UploadTestRepositoryTest.find_with_inner_data » IllegalState ApplicationContext failure threshold (1) exceeded: skipping repeated attempt to load context for [MergedContextConfiguration@589d106c testClass = co.domain.system.uploadfile.UploadTestRepositoryTest, locations = [], classes = [co.test.TestApplication], contextInitializerClasses = [], activeProfiles = [], propertySourceDescriptors = [], propertySourceProperties = ["org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTestContextBootstrapper=true"], contextCustomizers = [[ImportsContextCustomizer@23488e7a key = [org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration,

Is there anything changed in Springboot 3.2.0? Is the way of writing JUNIT test for repository changed?

Here is the error when I did a simple program:

java.lang.IllegalStateException: Failed to load ApplicationContext for [MergedContextConfiguration@58a63629 testClass = com.example.helloworld.repository.UserRepositoryTest, locations = [], classes = [com.example.helloworld.HelloWorldApplication], contextInitializerClasses = [], activeProfiles = [], propertySourceDescriptors = [], propertySourceProperties = ["org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTestContextBootstrapper=true"], contextCustomizers = [[ImportsContextCustomizer@7de843ef key = [org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration, org.springframework.boot.autoconfigure.data.jpa.JpaRepositoriesAutoConfiguration, org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManagerAutoConfiguration, org.springframework.boot.autoconfigure.cache.CacheAutoConfiguration, org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration, org.springframework.boot.autoconfigure.sql.init.SqlInitializationAutoConfiguration, org.springframework.boot.test.autoconfigure.jdbc.TestDatabaseAutoConfiguration, org.springframework.boot.autoconfigure.flyway.FlywayAutoConfiguration, org.springframework.boot.autoconfigure.jdbc.DataSourceTransactionManagerAutoConfiguration, org.springframework.boot.autoconfigure.liquibase.LiquibaseAutoConfiguration, org.springframework.boot.autoconfigure.jdbc.JdbcClientAutoConfiguration, org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration, org.springframework.boot.autoconfigure.jdbc.JdbcTemplateAutoConfiguration]], org.springframework.boot.test.context.filter.ExcludeFilterContextCustomizer@302c971f, org.springframework.boot.test.json.DuplicateJsonObjectContextCustomizerFactory$DuplicateJsonObjectContextCustomizer@35841320, org.springframework.boot.test.mock.mockito.MockitoContextCustomizer@0, org.springframework.boot.test.autoconfigure.OverrideAutoConfigurationContextCustomizerFactory$DisableAutoConfigurationContextCustomizer@71075444, org.springframework.boot.test.autoconfigure.actuate.observability.ObservabilityContextCustomizerFactory$DisableObservabilityContextCustomizer@1f, org.springframework.boot.test.autoconfigure.filter.TypeExcludeFiltersContextCustomizer@34be3d80, org.springframework.boot.test.autoconfigure.properties.PropertyMappingContextCustomizer@884bb438, org.springframework.boot.test.autoconfigure.web.servlet.WebDriverContextCustomizer@4d15107f, org.springframework.boot.test.context.SpringBootTestAnnotation@cd76d185], contextLoader = org.springframework.boot.test.context.SpringBootContextLoader, parent = null]

    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:180)
    at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:130)
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:141)
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:97)
    at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:247)
    at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:163)
    at java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:197)
    at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:179)
    at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625)
    at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509)
    at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499)
    at java.base/java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:310)
    at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735)
    at java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734)
    at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
    at java.base/java.util.Optional.orElseGet(Optional.java:364)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'testEntityManager' defined in class path resource [org/springframework/boot/test/autoconfigure/orm/jpa/TestEntityManagerAutoConfiguration.class]: Unsatisfied dependency expressed through method 'testEntityManager' parameter 0: No qualifying bean of type 'jakarta.persistence.EntityManagerFactory' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:802)
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:546)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1336)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1166)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:563)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:523)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:325)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:323)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:973)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:946)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:616)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:753)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:455)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:323)
    at org.springframework.boot.test.context.SpringBootContextLoader.lambda$loadContext$3(SpringBootContextLoader.java:137)
    at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:58)
    at org.springframework.util.function.ThrowingSupplier.get(ThrowingSupplier.java:46)
    at org.springframework.boot.SpringApplication.withHook(SpringApplication.java:1442)
    at org.springframework.boot.test.context.SpringBootContextLoader$ContextLoaderHook.run(SpringBootContextLoader.java:552)
    at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:137)
    at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:108)
    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:225)
    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:152)
    ... 17 more
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'jakarta.persistence.EntityManagerFactory' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1878)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1404)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1348)
    at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:911)
    at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:789)
    ... 41 more

Answer 1

My issue was solved by adding a columnDefinition to an enum. I use MySQL as a database.

@Enumerated(value = EnumType.STRING)
@Column(name = "type", length = 16, columnDefinition = "VARCHAR(16)")
var type: EnumType = EnumType.FIRST_VALUE

Unfortunately, the error is not very clear, but that solved my issue. The error popped up once I started the application (but not within the tests).